Operating characteristics of the male hypothalomo-pituitary-gonadal axis: pulsatile release of testoserone and follicle-stimulating hormone and their temporal coupling with lutenizing hormone. - Veldhuis,J.D.; King,J.C.; Urban,R.J.; Rogol,A.D.; Evans,S.A.; Kolf,S.A.; Johnson,M.L. (J Clin Endocrinol Metab, 1993)